On Fri, Jun 11, 2010 at 5:50 AM, Bruno Randolf <b...@einfach.org> wrote:
> Add an extra check to be sure we never process the self-linked rx descriptor
> at the end of the list. This should not happen since in this case the RXDP
Here's a way this might happen frequently BTW:
cpu 0: cpu 1:
ath5k_rx_stop
ath5k_tasklet_rx
// following not protected by rxbuf lock
sc->rxlink = NULL; /* just in case */
// following doesn't link used
// buffer to prev.
ath5k_rxbuf_setup()
AFAICT this can lead to lots of self-linked descriptors even in the
middle of the list.
--
Bob Copeland %% www.bobcopeland.com
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